Encyclopedia of Microtonal Music Theory

major-6th / major sixth / maj6 / M6

[Joe Monzo]

The larger of the two diatonic intervals which encompass 6 degrees of the of the diatonic scale. The major-6th is composed of 4 tones (i.e., whole-tones) and 1 diatonic semitone, and is one chromatic semitone larger than the minor-6th.